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Finding the Fourth Proportional to 40,912.92, 61,362.42 and 11,323.82

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Solution

The fourth proportional to 40,912.92, 61,362.42 and 11,323.82 is: 16,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,912.92 : 61,362.42 = 11,323.82 : x
  2. Step 2: Convert to fraction form
    40,912.92/61,362.42 = 11,323.82/x
  3. Step 3: Cross multiply
    40,912.92x = 61,362.42 × 11,323.82
  4. Step 4: Simplify right side
    40,912.92x = 694,856,998.84
  5. Step 5: Solve for x
    x = 694,856,998.84/40,912.92
  6. Step 6: Final answer
    x = 16,983.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.